(EnergyAsia, April 4) — Japanese companies Idemitsu Kosan Co Ltd and Mitsubishi Corporation have agreed to launch a study to their integrate their liquefied petroleum gas (LPG) businesses to increase productivity and reduce operating costs. The companies targeted for integration are Idemitsu Gas and Life Co Ltd (IGL), Mitsubishi’s LPG unit and Mitsubishi Liquefied Petroleum…